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denarius

[dih-nair-ee-uh s] /dɪˈnɛər i əs/
noun, plural denarii
[dih-nair-ee-ahy] /dɪˈnɛər iˌaɪ/ (Show IPA)
1.
a silver coin and monetary unit of ancient Rome, first issued in the latter part of the 3rd century b.c., that fluctuated in value and sometimes appeared as a bronze coin.
2.
a gold coin of ancient Rome equal to 25 silver denarii; aureus.
Origin
< Latin dēnārius, orig. adj.: containing ten (asses). See denary
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for denarius

denarius

/dɪˈnɛərɪəs/
noun (pl) -narii (-ˈnɛərɪˌaɪ)
1.
a silver coin of ancient Rome, often called a penny in translation
2.
a gold coin worth 25 silver denarii
Word Origin
C16: from Latin: coin originally equal to ten asses, from dēnārius (adj) containing ten, from dēnī ten each, from decem ten
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for denarius
n.

ancient Roman silver coin, 1570s, from Latin denarius, noun use of adjective meaning "containing ten," and short for denarius nummus "the coin containing ten (aces)," from deni- "by tens," from decem "ten" (see ten).

Online Etymology Dictionary, © 2010 Douglas Harper
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